SolarWorld is a German company dedicated to the manufacture and marketing photovoltaic products worldwide by integrating all components of the solar value chain, from feedstock to module production, from trade with solar panels to the promotion and construction of turn-key solar power systems. The group controls the development of solar power technologies at all levels in-house. SolarWorld AG is listed on the Frankfurt Stock Exchange, the Photovoltaik Global 30 Index and the ÖkoDAX. In May 2017, wholly owned subsidiary SolarWorld Americas, based in Oregon, US, joined fellow American solar panel manufacturer Suniva in its Section 201 trade action to request relief from what it claimed are unfair practices from solar panel importers to the United States. The requested remedy was a tariff on imported solar panels. FirstSolar, the largest US solar panel manufacturer, joined the action on October 10, 2017, while the Solar Energy Industry Association was leading the opposition to the tariff requests. The company filed for insolvency of its German subsidiaries alone in May 2017. Wikipedia